Wind sock



FIG. 1 is a top and right front perspective view of a wind sock showing our new design;

FIG. 2 is a right side elevational view thereof, the left side being a mirror image thereto;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof; and,

FIG. 5 is a rear elevational view thereof. 

The ornamental design for a wind sock, substantially as shown and described. 